Bessemer converter



(No Model.)

SCHULZB-BERGE.' BBSSBMBR CONVERTER. Y N0. 294,684'. Y

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@luren SrArEs PATENT .EEreE.

HERMANN scnULZE-RERGE, oE RooHEsrER, rENNsYLvANiA.

eEssEMl-:R CONVERTER.

SPECIFICATION forming part of Letters Patent No. 294,684, dated March 4,1884.

Application filed December 1, 1883.

To a/ZZ whontit may concern,

Beit known that I, HERMANN SCHULZE- BERGE, of Rochester, in the countyof BeaverA thereof.

My invention relates, particularly, to that class of Bessemer convertersknown as fixed or Swedisln and it consists in an improved apparatus forregulating and4 controlling the blast through the tuyeres, and ofpreventing the passage of the molten metal therethrough.

To enable others skilled in the art to make and use my invention, I willnow describe it by reference to the accompanying drawings, in which-Figure l is a vertical section of a converter. Fic'. 2 is a longitudinalview ofthe tuyere and stopper, also in vertical section. Fig. 3 is aview of a detail of construction.

Like letters of reference indicate like partsv in each.

. The converter a is provided with a wind box or trunk, b, blast-pipesc, feed-spout with cover d, tapping-hole c, einder-notch f, and throatg, all of the usual construction. The tuyeres h are each provided withan external chamber or pipe, t', secured to the outside of the shell ofthe converter, and having a suitable opening, i', to which theblastpipes c are connected. The inner ends of the tuyeres h are offlaring or other form, as at h', to form a seat for the stopper k. Thestopper k is of proper form to close tightly against the seat h', and isprovided with a stem, k', which extends through to the pipe or chamberz', and through a stuffing-box, i2, situated at its outer end. The outerend of the stem 7c is pivotally connected to the lever Z by means of thelink Z, the lever being pivoted to a bracket, l2, or other suitablesupport. As shown, the stopper 7c is constructed with a cast-iron part,k2, to which is attached a facing, 7c3, of refractory material. Thefacing is a brick formedv with a metallic core, k, and a nut, 765,molded in. The end of the stem k is threaded, so that it can be screwedinto the nut, and is provided with a collar,

-(No model.)

la, against which the metallic part k2 is tightly.

drawn when the stem is properly screwed into the nut.

I do not limit myself to the formand construction of stopper shown anddescribed, be cause, if desired, it may be made entirely of refractorymaterial and of other fornts, and the stem It" secured thereto in otherways, as is obvious to one skilled in the art.

By the use of this improvement the size of the tuyere-openings can beregulated as required, and the tuyere may be tightly closed whendesired, so as to prevent the passage of the molten metal therethrough.The tuyeres may be placed in the bottom of the converter, if desired.

To facilitate the insertion and removal of the stoppers, the tuyere iscomposed of or surrounded bya taper-shaped brick, m, which is preferablymade longer than the recess in which it is placed, so that it may beforced and held tightly to' place by its retaining` llange or plate mand bolts m, or other suitable fastening devices.

Other means of securing the sections m in place may be adopted, as willbe evident to those skilled in the art, which will enable the removal ofthe internal stoppers.

, The blast-pipes c are provided with a union, c', or other joint, so asto permit the detachment and removal of the blast-chambers i when it isdesired to take out the tuyeres and valves.

The retaining ange or plate m can be provided with an inward shoulder orprojection,

to bear against the end of the tuyere-section m, in which case the endof the latter need not project beyond the side of the converter, butwould be forced tightly to its seat by the inward projection when thebolts m2 were IOO sent or unseat l'hem :it will during the opern- Intestimony whereof.' I have hereunto set 1o tion of the Converter7substantially as and'or my hund this 24th dny of Xovernber, A.. D.

the purposes described. i 18s.?.

2. In n B essemer Converter, the eonibinntion of removable tuyeres ortuyere-seetions HE'IDIAXX SCI'IULZE-BERGE. with internal Stoppersoperated through the iuyeres, and means for operating such stop-`\Vitnesses:

pers7 snbstnntinlllxf as and for the purposes de- XV. B. Conwlx,scribed.

THoMAs Il. KERR.

